25421696 has 32 divisors (see below), whose sum is σ = 53315400. Its totient is φ = 12040704.

The previous prime is 25421687. The next prime is 25421731. The reversal of 25421696 is 69612452.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2795 + ... + 7658.

Almost surely, 2^25421696 is an apocalyptic number.

It is an amenable number.

25421696 is an abundant number, since it is smaller than the sum of its proper divisors (27893704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25421696 is a wasteful number, since it uses less digits than its factorization.

25421696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10486 (or 10474 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 25421696 is about 5041.9932566397. The cubic root of 25421696 is about 294.0366776707.

The spelling of 25421696 in words is "twenty-five million, four hundred twenty-one thousand, six hundred ninety-six".